Valve for hot-air accelerators.



H. F. DU CHESNE.

VALVE FOR HOT AIR ACCELERATOBS..

APPLICATION FILED MAYZZ. I917.

1,291,795. Patented Jan. 21,1919.

W66 %Z///z4 L ionrrnn sra'rns PATEN orrron.

HARRY F. DU CHESNE, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF TO HARRYF.

WESLER, 0F CINCINNATI, OHIO.

VALVE FOR HOT-AIR ACCELERATORS.

Specification of Letters Patent.

Patented Jan. 21, 1919.

Application filed May 22, 1917. Serial No. 170,324.

1 b all whom it may concern:

Be it known that I, HARRY F. DU Cirnsnn, residing at Cincinnati,Hamilton county, State of Ohio, have invented certain new and usefulImprovements in Valves for Hot- Air Accelerators for Automobile-Engines,of which the following is a clear, full, and exact description,attention being called to the drawing which accompanies this applicationand forms a part thereof.

This invention relates to new and useful improvements in valves for hotair accelerators for automobile engines, said accelerators being devicesused in connection with automobile engines for the purpose of admittinghot air to the intake manifold to accelerate the operation of theengine.

The valves whereby this admittance is controlled are attached to themanifold and provided with actuating means extending rearwardly withinconvenient reach of the driver for manipulation.

The invention consists of the particular construction of such a valvewhich is of a character to permit ready attachment in position and is ofcompact formation which does not take up much space.

This particular construction is described hereinafter and pointed out inthe claims as well as illustrated in the accompanying drawing in which:

Figure 1 shows accessory parts of an automobile engine with theaccelerator and its controlling valve in position.

Fig. 2 is a longitudinal section of the valve taken in a horizontalplane.

Fig. 3 shows an end view of the valve.

In the drawing letter A indicates the in take manifold, and letter Bindicates the exhaust manifold. Letter C indicates the carbureter. D isa shell casing in form of an inverted cone and at its larger end isclosely fitted against the exhaust manifold.

It constitutes the heater by which air to be passed into manifold A isheated before admitted into the same.

Passage of the air from this heater to the manifold is through acylindrical valvehousing 5 which is open at both ends and at one end isprovided with a screw threaded nipple 6 which is fitted to ascrew-threaded opening 7 in the wall of the intake manifold wherebyconnection of the valve-housin to the nipple is accomplished.

The heater communicates with the interior of the valve-housing by meansof an opening 8 in the side of the latter (see dotted lines in Fig. 2)to which opening the shell of the heater at its narrow end it fitted.

Passage of the air to the manifold is controlled by a valve 9 fitted toseat against a shoulder 10 which is formed within the valve-housing andlocated between opening 8 and nipple 6.

A stem 11 extends rearwardly from the valve and is fitted into a sleeve12 seated in the other end of the valve-housing, both serving ascomplementary means to guide the valve during its movements to and fromits seat on shoulder 10.

Valve 9 is normally held against shoulder 10 by means of a spring 13,sleeved upon stem 11 and confined between said valve and a shoulder atthe outer end of the valvehousing, said shoulder being formed by sleeve12.

The valve is actuated for opening as shown in dotted lines in Fig. 2 bymeans of an angle lever 14 which is fulcrumed between two lugs 15l5projecting laterally from the valve-housing.

It extends into the valve-housing through a slot 16 between these lugsand engages the valve stem by means of a slot 17 in the same and whichslot is occupied by one end of said lever.

Sleeve 12 is also lengthwise slotted in its side as shown at 18 topermit free movement of the inserted end of the lever, all three slotsbeing in registry with each other.

The lever is manually operated by any means which may be convenientlypositioned within reach of the driver as by a hand lever or by atreadle, connection with these means being made by a push rod 19.

When this rod is manipulated by being pushed toward the valve-housing,lever 14 is also moved toward the valve-housing and causes the valve tomove outwardly thereby admitting hot air to manifold A.

Having described my invention I claim as new:

1. In an accelerator valve, a valve-housing having an internal annularvalve seat, and having a lateral passage to its exterior close to saidvalve seat, said housing being externally threaded in its part adjacentto this end, and having an internally threaded part and a longitudinalslot through one wall adjacent to its other end, an externally threadedsleeve screwed into said interiorly threaded part with a slotregistering with said slot of said housing, a valve slidably fitting insaid housing against said valveseat, and having a stem extending intosaid sleeve, and said stem having a slot registering with said slots insaid sleeve and said housing, a spring lying along said stem andcompressed between said valve and said sleeve, and a lever fulcruined onsaid housing and extending through the slots in said housing and saidsleeve into the slot in said stem. 7

2. In an accelerator valve, a valve-lions ing having an internal annularvalve seat, and having a lateral passage to its interior close to saidvalve seat, said housing being externally threaded in its part adjacentto this end, and having an internally threaded part and a longitudinalslot through one wall adjacent to its other end, an externally threadedsleeve screwed into said interiorly threaded part with a slotregistering with said slot of said housing, a valve slidably fitting insaid housing against said valveseat, and having a stem extending intosaid sleeve, and said stem having a slot registering with said slots insaid sleeve and said housing, a spring lying along said stem andcompressed between said valve and said sleeve, and a lever fulcrumed on,said housing and extending through the slots in said housing and saidsleeve into the slot in said stem, said lever comprising an 2l-I111eXtI1Cl-' ing along the outside of said housing for suitablemanipulating connection, whereby said lever is entirely contained withinthe limits of the length of the valve-housing.

In testimony whereof I hereunto a'fiix my signature.

HARRY F. DU oHEsNn' Copies of this patent may be obtained for five centseach. by addressing the "Commissioner of Patten-ts;

Washington, I. G.

